This Web site contains information on activities of the National Geologic Map Database Project (NGMDB). The NGMDB is a collaborative effort primarily involving the USGS and the Association of American State Geologists. This Web site contains informal, generally time-sensitive material intended for project members, cooperators, and interested parties.

How to add records to the Map Catalog

-- Information and Resources --

Welcome to the map-catalog help pages for our State geological survey
and other cooperators! We hope you find the information and resources
needed to begin entering geologic maps for your state into the National
Geologic Map Database's map catalog. Please contact us with any
questions or comments.